Internal-combustion engine.



A. A. LOW & H. HERTZBERG.

INTERNAL COMBUSTION ENGINE.

APPLICATION FILED JUNE 16, 1908.

9%5339, Patented Jan. 11,1910.

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INTERNAL COMBUSTION ENGINE. APPLICATION FILED JUNE 16, 1908.

Patented Jan. 11,1910.

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ABBO'I' A. LOW, 0F HORSESHOE, AND HARRY HERTZBEBG, OF NEW YORK, N. Y.SAID HERTZBERG ASSIGNOR TO SAID LOW.

INTERNAL-COMBUSTION ENGINE.

Specification of Letters Patent.

.l.atented Jan. 11, 1910.

To all whom 'it may concern:

Be it known that we, Anno'r A. Low and HARRY I-IER'rzBEno, citizens ofthe United 5 States, and residents, respectively, of Horseshoe,'countyof St. Lawrence, and State of New York, and of the city of New York,borough of Brooklyn, county of Kings, and State of New York, haveinvented certain i new and useful Improvements in Internal- CombustionEngines, of which the following g is a specification.

This invention relates to internal combus- 1 tion engines and moreparticularly to that portion of the engine where the fluid is vaporizedand mixed with the proper amount of air to form the explosive charge. 5

The invention as illustrated in the accompanying drawings is shown as adesign for use with explosive engines using kerosene oil. In engines ofthis type the oil is inair is admitted and mixed with the oil vapor. Theexplosive charge thus formed is then admitted to the operating cylinderthrough suitable admission valves. In order to form a uniform mixture itis important that the i oil vapor shall be continuously carried out fromthe vaporizing chamber with the air.

The object of this invention is to accomplish this result and also toprevent any of the explosive mixture formed by the oil vapor and the airfrom being carried back into the air chamber and pipes by any backpressure that may follow the explosion.

The advantage of these features will be evident.

In the. several views like parts have been given the same referencenumbers.

Figure 1 is a side elevation partially in section of a portion of anengine illustrating one embodiment of the invention. Fig. 2 is a planview in section of Fig. 1. Fig. 3 is a side elevation partially insection of an engine showing a modification of the invention. Fig. 4 isa side elevation on line 4t of Fig. 5. Fig. 5 is an enlarged plan viewof the air admission valve. 1

Referring to Fig. 3 a portion of the engine cylinder is shown at 1.Suitable admission valves are positioned in the valve chamber 2 andoperated by the lever 3 and connected parts. The oil is admitted throughthe pipe a and injected or sprayed into the the supply pipe 6 and theadmission thereof is controlled by suitable valve 7. Positioned in theupper part of the vaporizing chamber 5 is a partition or wall 8 whichextends over a portion of the opening between the vaporizing chamber andthe air supply pipe 6. At one side of this opening a recess 9 isprovided and an opening 10 in the wall separating this recess 9 from thevaporizing chamber 5. Covering this opening 10 is a valve '11 which maybe pivotally mounted 1 at its upper edge so as to permit the same toswing inwardly and allow the air to pass in from the supply pipe 6 tothe vaporizing chamber 5 where it is mixed with the This valve isarranged so that any back pressure in the vaporizing chamber 5 willcause the same to close the opening 10 and prevent the explosive mixturein the chamber 5 from being forced back in the air supply pipe 6.

The arrangement of the several parts of the device, as shown in F 1 and2, have been found to give very good results and the same possess manynovel features which will be apparent from the description hereinaftergiven. In this arrangement the vaporizer in the chambe' 5 consists of acoil of wire 12 wound upon a suitable base 13 which is preferably ofinsulating material.

.Current is supplied from the lead 14 by means of which the coil 20 isheated. The stream of oil entering through the chamber 2 strikes theheated coil 12 and is vaporized. The air is supplied from the pipe 6 andenters the chamber 15 which is separated from the vaporizing chamber 5by means of the valve 16. This valve 16 operates in the same manner asthe valve 11 just described in connection with the construction shown inFig. 3.

Vith the arrangement as shown in Figs. 1 and '2 the air passes from thechamber 15 over the entire surface of the vaporizer 12 and is,consequently, thoroughly mixed with the oil vapor and also assists inforcing all of the mixture out of the vaporizin chamber 5. The inclinedlower portion 1? of the aporizing chamber 12 insures a minimum of deadspace in which the oil vapors might accumulate and cause an imperfectmixture. Another feature of this construction is in the arrangement ofthe removable cover 18 "from which the vaporizing coil is suspended iii)upon this cover 18 as shown, and thus the Whole may be removed togetherpermitting access to the interior of the vaporizing chamher and Willfacilitate the repairing and cleaning of the coils, etc.

It will thus be seen that a simple and compact construction is providedin which the air passes over the entire surface of the vaporizer thusinsuring a more perfect mixture and that the mixture is prevented frombeing forced back into the air supply pipe by means of the valveconstruction above described.

As many changes could be made in the above construction and manyapparently widely different embodiments of our inveir tion. designedwithout departing from the scope thereof, We intend that all mattercontained in the above description or shown in the accompanying drawingsshall be interpreted as illustrative merely of an operative embodimentof our invention and not in a limiting sense.

lVhat we claim is:

1. In combination with an internal conibustion engine, a vaporizingchamber ha ring an increasing cross-sectional area toward its exhaustend, a vaporizing coil angular-iv POSiLlOI lQd in said chamber, meansfor admitting air at the small end of said chamber, and means forcontrolling the admission of air to said chamber, said means beingoperative to prevent the escape of the air mixture from said chamber.

2. In combination with an internal coinbustion engine, a vaporizingchan'iber having an inclined Wall providing an increasingcross-sectionai area toward its exhaust end, a vaporizing coil angularlypositioned in said chamber adjacent and parallel to said angular Wall,means for admitting air at the small end of said chamber, and a valvefor controlling the admission of air to said cham her, said valve beingoperative to prevent the escape of the air mixture from said chamber.

3. In combination with an internal combustion engine, a vaporizingchamber, a removable cover for said chamber,a flat vaporizing coilattached to said cover and removable thereiv'th, means for injecting thefluid to be vaporized into said chamber and against the fiat surface ofsaid vaporizing coil when the same is in position, and means foradmitting air to said chamber to form the explosive mixture.

4. In combination with an internal combustion engine, a vaporizingchamber, a removable cover for said chamber, a flat vaporizing coilsuspended from said cover in an inclined position and removabletherewith, means for injecting the fluid to be vaporized into saidchamber and against the flat surface of said vaporizing coil when thesame is in position, and an air admission pipe positioned at one end ofsaid chamber, said air admission and vaporizing coil being so positionedthat the air passes over the Hat surface of said coil.

Signed at Brooklyn, X. Y. city, in the county of Kings and State of NewYork. this 12th day of June, 1908. I

ABBOT A. LOW. HARRY HERTZBERG.

\Vitnesses M. A. Hanan, GEO. TELLING GIDDINGS.

